Water duct sensors for gas boilers and pumps. Water Driver Relay - Purpose, Principle of operation and Self Connection Raising Pump with Duch Relay

The water duct sensor is a device that adjusts the pressure inside the water supply system. It connects to pumps through nozzles. The main parameters of the fixtures should include not only the limit pressure, but also the output voltage. Also manufacturers indicate obligatory throughput. To date, there are many types of modifications. In order to figure out in more detail on the question, it is primarily to explore the device of the water flow sensor.

Device model

The standard water flow sensor diagram includes a relay and a set of plates. Inside the modification there is a wide camera. The flask is always in a fixed state. Inside it is a small float. The output there is a feeding channel. Many modifications are made with adjustable crane, which is installed at the output. Models with valves are equipped with moving type fittings. Magnetic power is involved for their work.

Sensor: do it yourself

Make a water flow sensor with your own hands is quite simple. First of all, it is recommended to do the installation of the camera. For this, a small plastic container is suitable. Then you will have to cut three plates that are installed in a horizontal position. The flask in the end should not touch them. If we consider simple model, I'll have one float. The fitting is expedient to install on two adapters. The valve must withstand the pressure of at least 5 pa.

Types of modifications

On design, only relay and fitting devices are distinguished. Additionally, the separation of modifications is carried out in terms of pressure. In a separate subcategory, devices for circulation pumps are isolated.

Relay models

Relay water duct sensor for gas boiler Suitable for low power pumps. As a rule, models are made with one chamber. Many experts suggest that they have low conductivity. However, it is worth noting that there are devices with a vertical location of the plates. The limit pressure is equal to at least 5 pa. Protection systems are quite commonly used series P48. All this suggests that water leaks are rarely observed. Modifications are characterized by excellent stability. The strength of suction is equal to at least 3 N. Very rarely, the models meet crane.

Equipment

The most common pumps for pumps are indicator modifications that are produced with one chamber. They are usually located in a horizontal position. Some modifications are equipped with two valves. And the parameter of the limit pressure is equal to about 5 pa. Protection systems are quite commonly used class P58. In this case, conductivity depends on the size of the fitting. Some modifications are able to boast high speed pumping. Connections they often have a threaded type. Also on the market presented sensors on clamps that are not very popular.

Low pressure devices

Low pressure modifications are well suited for centrifugal pumps with a capacity of up to 4 kW. Their conductivity depends on the size of the camera. Most often on the market there is a water duct sensor for a pump for two floors. At the same time, the force of pumping on average is 5 N. Protection systems apply to different classes. Many sensors are installed through lining. The output contacts are designed for wired adapters. It is also worth noting that there are many inexpensive models on the market.

High pressure modifications

Models high pressureUsually produced with one oblong fitting. The plates on the water duct sensor for the pump are most often installed in a horizontal position. If you believe the reviews of experts, the models are remarkably suitable for centrifugal pumps. When choosing a modification, it is important to pay attention to the bandwidth of the devices. The dimensions are also taken into account. Many models are made with two cameras. However, the valve is used only one. If we consider the standard model, then the limit pressure on average is not more than 6 pa. The protection system in devices is used class P70. It is very rare to meet models with a crane. Mainly set conventional switches.

Devices for circulation pumps

Sensors for circulation pumps are very popular. Distinctive feature Modifications are considered low lifting. The limit pressure on average equals 3.3 pa. Protection systems apply to various classes. Very rarely there are devices for two cameras. When the model is selected, it is important to pay attention to the shape of the fitting. He must have a wide head and a narrow canal. Otherwise, there will often be leaks. Additionally, it is worth noting that the market contains devices on floats. They are designed for adapters.

Features of models for two cameras

The sensors into two chambers are usually highlighted by large dimensions and a high pressure parameter. There are many models on the market for two valves. They have a suction force equals 4 N. Protection systems apply to the R88 series. Plates for sensors are always installed in a horizontal position. If we talk about disadvantages of devices, it is important to note that they use strongly large channels at the exit. For pumps with a capacity of up to 8 kW models are not suitable. There are devices with cranes in the market and without them. Additionally, there are modifications based on contact contactor switches.

Devices for three cameras

Sensors are connected to three chambers for centrifugal pumps. The limit force of compression they have very high. It is also worth noting that the models are made with short channels. The valves are used by the rotary type. They are protected by a special membrane. If you believe experts, the conductivity depends on the size of the camera. If we talk about the design, it is worth noting that there are models with oblong fittings on the market. They have an extremely low suction force. However, they are capable of listening to a long time. In stores, devices with switches are very rare. As a rule, models for three cameras are made with small cranes.

Models for low-power pumps

The water duct sensor for low power pumps should be selected only among the agricultural modifications. The limit pressure indicator should be about 5 Pa. The protection system is welcomed by class P48. Many experts praise devices on the basis of two cameras. The power of suction is about 4 N. Relay modifications for small power pumps are not suitable.

Modifications with vertical location of plates

Devices of this type show themselves on centrifugal pumps. They have good conducts and no problems with increased pressure. However, do not forget about the shortcomings of modifications. First of all, the channel is often clogged. If we consider an inexpensive water duct sensor, then it can have a valve problem. For normal operation of the system, it is more expedient to select devices with output contacts to 12 V. The protection system must be installed class P55. Another experts suggest that the water duct sensor must be with the contact switch.

Requirements with horizontal plates arrangement

Water duct sensor for the boiler of this type is suitable for a wide variety of pumps. The conductivity of the models depends on the dimensions of the chamber directly, as well as the channel. Additionally, the diameter of the fitting is taken into account. Many experts recommend installing two-chamber modifications. The power of pumping in them, as a rule, does not fall below the mark of 5 N. The protection system is quite often used by the R50 series. All this suggests that the manufacturer is guaranteed a high degree of sealing and overall reliability.

If the device is selected, it is important to estimate the valve parameters. If it is made and ordinary plastic, it is not capable of listening to a long time. Copper analogs show themselves well, but they are expensive. The main flask in the sensors is made of plastic. Very rarely encounter modifications with transitional contacts. Relay modifications are able to boast high conductivity. They are not afraid of overloads. And they use high-quality protection systems.

The water duct sensor for the pump is an integral part of the equipment, designed to protect the device from work on the "dry go." The sensor has a small size and has simple designThat allows you to establish it even a newcomer.

Functions and advantages of water flow sensor

Often there are situations at which the pump starts at the time of the complete absence of fluid in the pipeline. This provokes the heating of the unit of the unit and its further breakdown. To eliminate the occurrence of such situations, the fluid flow sensor should be used. This device works automatically and controls the water duct inside the pipeline. If the number passing through the liquid sensor is less than the norm, the device automatically disables the pump. Thus, the water flow relays not only prevents the operation of the pump on the "dry go", but also supports the normal conditions for the work of the unit.

The advantages of using the sensor refers:

• Reduction of electricity consumed by the pump and cash savings;
• Protection of equipment from breakdowns;
• Increase the pump operation period.

Among other things, the water flow switch for the pump is characterized by humble dimensions, low cost and simplicity in the installation.

Water Drift Relay - Operation Principle and Design

The main function of the sensor is disconnected pumping equipment In the case of a decrease in the water level or increase the pressure in the pipeline. If the amount of water increases or drops pressure, the fluid stream indicator starts the equipment again. For the stable execution of tasks assigned to the relay, its structural elements meet.

The device of the device consists of such details:

• Pipe, through which liquid falls inside the device;
• The membrane, which plays the role of one of the walls of the internal device of the device;
• The armless switch, which is responsible for the opening and closure of the chain in electrical scheme pump;
• Two different spring diameter - through their compression, the water pressure is controlled, in which the fluid flow sensor will be performed.

The principle of the relay is as follows:

1. In case of contact in the inner chamber of the device, water puts pressure on the membrane, thereby shifting it aside;
2. S. back side The membrane magnet becomes closer to the germ switch, because of which its contacts are closed and the pump turns on;
3. If the water level drops, the magnet membrane is distinguished from the switch, which leads to the opening of its contacts and turn off the pump.

Install the fluid flow signaling in the pipeline is simple enough. To do this, it is necessary to study the features of the connection of the device and its proper configuration.

Device connection circuit

The efficiency of the relay is highly dependent on its right mounting. It must be remembered that it is possible to install the instrument only in those areas of the pipeline that are located horizontally. It will take place to ensure that the sensor membrane is in a vertical position. Proper scheme Relay connects as follows:

In the process of installation, the sensor must be connected to the drain part of the pipe through threaded compound. The distance on which the relay must be located from the pipe should be more than 5.5 cm.

On the instrument housing there is an arrow indicating the direction of circulation of the fluid. When installing the device, you need to trace so that this arrow coincides with the direction of water flow in the system. If for household purposes is used dirty water, Before the sensor, install cleaning filters.

One of the common causes of breakdowns of circulation pumps is the so-called "dry course" when the pump continues to work, but the water does not pass through it. Such work creates the danger of emergency situations, the engine overheats, the parts are overheated, the parts are deformed, and the pump as a whole is rapidly wears. To avoid such a problem, manufacturers offer rising and circulating pumps with a duct sensor.

Why do you need a duct sensor?

The duct sensor is a device that determines the movement or stopping the flow of the working medium in the system to turn on and disconnect the circulation pump. Today produce models, both with built-in and outer sensors. They not only perform the function of protection of the pump, but also ensure the maintenance of optimal pressure in water supply and heating systems.

The principle of the sensor is that it controls the power of the water flow and triggers the pump when the water flow rate reaches the value of 1.5 liters per minute, when the speed drops below the specified value, the sensor turns off the pump.

Thus, it provides several advantages at once:

• allows the pump to work in automatic mode;
• allows you to avoid the operation of the pump "in dry" because it starts the system and raises the pressure in it only when it is necessary;
• automatic switching on and off makes the pump work much more economical, reducing electricity costs.

The cost of models with the sensor is slightly higher than that of ordinary pumps, but they are reliably protected from breakdowns, reliable and durable.

The work of modern household and industrial devices depends largely on the right and uninterrupted work. electronic devices. In many ways, this state of affairs suits, however, as soon as the failure occurs, the normal rhythm of life turns into a solid nervousness. But in principle, nothing terrible happens just one of the components fails.

It is to such components of modern household appliances And the water flow sensor belongs. Non-accomplished device that are equipped with gas water boilers, autonomous water supply systems, watering systems, well pumps.

As with all electronic components, the duct sensor also has the principles for which it works. In principle, everything is simple here, the whole point of its work is to signal whether there is a movement of water or not. The sensor is installed, for example, into the pipe. When the crane is closed, there is no water movement, and as soon as the crane opens, the water movement begins and the sensor is running, the contacts are closed and the signal goes to the control board.

True, it is necessary to immediately indicate that a pre-sensor is configured to a certain sensitivity threshold - this is when the movement of water should reach a certain mark, for example, 1.7 liters per minute. Then the sensor will turn on, and it will continue to work as long as the water supply rate does not decrease below the mark, and then the contacts will open, and the control board will stop receiving the signal.

Areas of use

In domestic conditions, water duct sensors found their use mainly in devices where continuous monitoring of life support systems and compliance with a certain mode of their functioning are required. Controlling water supply, motion sensors make it possible to significantly reduce the cost of the homeiness of the home, make life much more comfortable and safer.

For gas boiler

The main site of the water flow sensor in modern houses steel gas boilers. Modern gas boilers equipped with such sensors combine the functions of the water heating apparatus and the heating boiler.

Water duct sensor installed on the feed pipe water water Reacts to the beginning of water movement when opening a hot water crane.

The sensor sends a signal to the boiler control board, and the electronics turns off the heating circulation pump, extinguishes the gas heating nozzles, overlaps the water circulation valve in the heating system. And then the board includes nozzles for the heating of flow water and in the heat exchanger begins the process of water heating. When closing the crane, the sensor captures the movement of the water, which signals the control circuit.

For pump

Many modern home ownership are equipped with autonomous water supply systems. Such systems allow you to have in a private house the comfort level comparatable with apartments, but does not depend on the centralized water pipeline.

A system consisting of a pump, water tank and control system allows you to maintain all the necessary systems necessary for a comfortable living - washing machines, dishwashers, enjoy hot water and toilet.

The role of the water flow sensor is that when any of the device connected to the water supply system is turned on or water welding begins, the sensor turns on the pump and the water supply automatically begins. At the same time, it does not matter whether the wash begins whether the crane opens in the kitchen or the toilet tank is descended.

Another option to use water duct sensors are automatic irrigation systems. Here, in addition to the opening function, the flow sensor controls the amount of water used for watering. This function is necessary to control the dosed irrigation and avoiding the oveurgement of the soil. The sensor installed on the center pipeline provides information on the system control panel.

Views

Today, the water duct sensors of two types have found the greatest application - the Hall sensor and the gear relay.

The flowing water sensor, based on the principle of operation of the Hall sensor (it is also called the flow meter) is a small turbine on which a magnet is notaled. When rotating the turbine, the magnet creates a magnetic field and as a turbine on a hydroelectric power station generates small electrical impulses that come to the boiler control board. The speed of rotation of the turbine depends on the water supply rate, the greater the flow, the clearer pulses. Thus, due to the Hall sensor, it is possible not only to signal the water duct, but also about the water supply speed.

The 8th water duct sensor is a sensor based on the use of magnet principles. In principle, this sensor looks like this - inside the chamber of the composite material there is a magnetic float, with an increase in water pressure, the float moves through the chamber and affects the reserves.

Herkeon, and this is nothing more than two magnetic plates in the camera without air, under the action of the magnetic field, the float will open, and the control board translates the operation of the boiler into hot water.

Installation

Considering the fact that most water duct sensors are constructively part of the instruments, the installation is required only in case of replacement upon failure. However, there are situations where the water flow sensor must be installed separately, for example, when there is a need to increase the water supply pressure.

After all, there are often situations when there are insufficient pressure in the central water supply system, and to turn on the gas boiler to hot water, it is necessary to create a good pressure. In this case, an additional circulation pump is installed, equipped with a water duct sensor.

In this case, the sensor is installed after the pump, thus, at the beginning of the water movement, the sensor includes a pump, and water pressure rises.

Review of models and prices

Water duct sensor for Grundfos UPA 120 pump

Basic use - automatic pump control of the water supply system. The sensor is designed to provide water supply individual house, Apartments equipped with an individual water supply system. The inclusion of the sensor automation occurs at a stable fluid flow in the range of 90-120 liters per hour.

The main purpose is to protect the pump from idle. Sensor is used with pressure raising pumps Grundfos series UPA. These aggregates have small linear dimensionsWhat allows you to install directly into the line of the water pipeline.

The use of the sensor allows the pump to operate in several modes of operation, allowing both automatic inclusion and inclusion if necessary. The sensor automation turns off the pump in case of increasing the pressure in the plumbing to the normal indicator.

Characteristics:

• power consumption - up to 2.2 kW;
• degree of protection - IP 65;
• manufacturer - Grundfos;
• country producer - Romania, China;

Price - 30 dollars.

Genyo series water duct sensor - Lowara Genyo 8A

Products of the company specializing in the production of various electronic devices for control systems. The model is designed to control the pump household system Water supply based on the actual water consumption. The main feature of the sensor is to control the pressure in the plumbing during operation. The LOWARA GENYO 8A sensor is designed to start the pump when the water flow rate is achieved at 1.5-1.6 liters per minute.

Characteristics:

• the launch of the pump is performed at 1,5 liter water consumption per minute;
• operating voltage of the sensor - 220-240 V;
• the frequency of consumed current - 50-60 Hz;
• maximum current consumed - 8a;
• power consumption - up to 2.4 kW;
• range of operating temperatures - 5-60 degrees Celsius;
• degree of protection - IP 65;
• manufacturer - Lowara. ;
• country of manufacture - Poland;

Price - 32 dollars.

Designed for installation in gas double-circuit boilers Brand immergas. Compatible with models: Mini 24 3 E, VICTRIX 26, MAJOR EOLO 24 4E | 28 4e. The duct sensor for hot water is designed to install in gas bolery Brand immergas smoking and turbocharged versions. The duct sensor is made in a plastic housing with a threaded connection. The Hall Sensor 1.028570 allows you to receive water from the stable temperature at the output from the contour of hot water supply,

Price 41 dollars.

Now we will understand why the water flow sensor is needed (they call the "Relay of Duch") and look at the principle of its work. Also you will learn what kinds of these sensors and how to install it yourself.

Check the price and buy heating equipment And you can have accompanying goods. Write, call and come to one of the shops in your city. Delivery throughout the Russian Federation and CIS countries.

In everyday life sometimes happens emergency inclusion The pump without water, which can lead to equipment breakdown. Due to the so-called "dry stroke", the engine overheats and the parts are deformed. In order for the pump functioning with maximum efficiency, it is important to ensure water supply without interruptions. To do this, equip the heating system and hot water supply with such a device as a water flow sensor.

Water Drift Sensor

Device and principle of operation

The water flow sensor is a device that monitors the pressure inside the water supply system, it is connected to the pump by means of pipes.

Standard water flow sensor diagram:

• relay;
• set of plates;
• inside the device there is a wide chamber;
• float small sizewhich is placed inside the fixed flask;
• channel feeding at the exit;
• most models are equipped with an adjustable crane installed at the output.

Principle of the sensor: when there is no fluid flow, it automatically suspends pump station And it does not allow "dry go", and when water appears, it starts the device.

Application area

Water duct sensors are usually found in devices where it is necessary to continuously monitor life support system and comply with a certain mode of their work.

Most often, water duct sensors are used in boilers operating on gas. Modern gas boilers equipped with such sensors are used both for heating and water heating.

The device that is located on the pipeline supply of tap water when water enters the signal to the boiler and operation circulating pump stops. Then the board includes nozzles responsible for heating flowing water, and water in the heat exchanger begins to heat up. When the crane is closed, the sensor notifies that the water supply is suspended.

Most of the households are equipped with autonomous water supply systems, thanks to which you can have the most comfortable conditions.

The water flow sensor function is that when you turn on any of the devices connected to the water supply system, the sensor turns on the pump and water begins to flow.

Choosing a water flow sensor, be sure to consider the bandwidth of the devices and their dimensions.

Types of water flow sensors

By type of construction, relay and fitting devices are distinguished. In addition, variations are distinguished by pressure level.

Relay type water duct sensor It is used for pumps with low power. Usually these models are single-chamber. Specialists note their low conductivity. Models are produced with a vertical location of the plates, their maximum pressure is at least 5 pa.

Protection systems are often used by the P48 series. Thanks to all these indicators, water leaks almost does not happen, also similar devices are characterized by good stability.

The most widely used water duct sensors for pumps - equipment models. The plates are usually placed horizontally, separate samples are equipped with two valves. The maximum pressure of them is approximately 5 pa. Protection systems most often class P58. The conductivity is in direct dependence on the size of the fitting.

Low pressure sensors are applicable for pumps with a power of no more than 4 kW. The size of the chamber affects conductivity. Most often in the market, you can find the water flow sensor for the pump for two floors. Their price is low and easily you can choose the desired model.

High pressure models are usually produced with one elongated fitting, the plates are mounted horizontally. Specialists advise to establish such samples in centrifugal pumps. Maximum pressure - does not exceed 6 Pa, Class P70 protection system.

Also, the action mechanism is divided into:

• water sensor based on the principle of the Hall sensor: signals not only about the water duct, but also about the feed rate;
• the germ sensor acting according to the principle of the magnet: inside it is located a magnetic float, which, as water pressure grows, it moves through the chamber and has an impact on the German.

Device and principle of operation of the generic water flow sensor

Installation and manufacture with your own hands

Most of the water flow sensors are in the design of the devices, so it is required to produce their installation solely in the event of a breakdown and need to replace. However, there are cases when the water duct sensor must be installed separately, for example, if necessary, an increase in water supply pressure. This is due to the fact that in the system of the central water supply system, the pressure is low and does not reach the norm. And in order to turn on the gas boiler in the hot water regime, you need a good pressure.

In such situations auxiliary circulation pumpwhich is equipped with a water duct sensor. First, the pump is mounted, and after the sensor. It follows that as soon as the water starts to flow, the sensor will turn on the pump and the pressure will begin to increase.

Pressure Enhancement Pump For System water supply Grundfos. UPA 15-90 with built-in water duct sensor

Make a water flow sensor with your own hands is not difficult. First you need to install the chamber, then you need to cut three plates, it should be mounted horizontally, there should be no contact between them and the flask. For a simple design, one float will be enough.

The fitting is rational to install on two adapters, the valve must withstand the pressure of at least 5 pa.

Manufacturers

Manufacturer	Characteristic
Water flow sensor for grundfos pump UPA 120 (Denmark)	Designed to ensure water supply of an individual house, an apartment equipped with an individual water supply system. The inclusion of the sensor automation occurs at a stable fluid flow in the range of 90-120 liters per hour. The main function is to protect the pump from idle. The launch of the pump is performed at a 1.5 liter water consumption per minute. Operating voltage of the sensor - 220-240 V. Maximum current consumed - 8 A. Power consumption - up to 2.2 kW. Degree of protection - IP 65. Price - about 1,800 rubles.
Genyo Water Drift Sensor - Lowara Genyo 8A (Poland)	Used to control the pump household water supply system based on the actual water consumption. The main feature of the sensor is to control the pressure in the plumbing during operation. The launch of the pump is performed at a 1.5 liter water consumption per minute. Operating voltage - 220-240 V. Current frequency - 50-60 Hz. Maximum current consumed - 8a. Power consumption - up to 2.4 kW. Range of operating temperatures - 5-60 degrees Celsius. Degree of protection - IP 65. Price - about 1,800 rubles.
Duch Sensor 1.028570 (Italy)	Designed for installation in the gas double-circuit boilers of the brand immergas. Compatible with models: Mini 24 3 E, VICTRIX 26, MAJOR EOLO 24 4E | 28 4e. It is intended for installation in the gas boilers of the trademark Immergaz chimney and turbocharged versions. Made in a plastic housing with a threaded connection. The Hall Sensor 1.028570 allows you to receive water from the stable temperature at the output from the contour of the hot water supply. Price - approximately 2,400 rubles.

Thus, the water flow sensor is designed to protect the operation of boilers and pumping equipment.